Car Hesitates When Shifting From P (park) to D (drive)

Hi Admin,
Did your car receive all of its scheduled tansmission services?
This type of issue is usually caused by slippage of the internal clutches, but sometimes also by sticking shuttles in the valvebody. A sticky valvebody can sometimes be freed by the addition of a suitable solvent, but clutch slippages need to be seen to by a transmission specialist.

Old, dirty,and contaminated transmission fluid eventually forms various gums and varnishes that get deposited on all the internals. The cleaning agents in the new fluid removed some of it, but the issue resurfaced because not all of the old fluid was removed, which means that most of the contaminants were re-deposited on the clutch surfaces. I would recommend a proper service by a transmission specialist to firstly clean out all the gunk, and secondly to adjust the clutches to specs.

Hope this helps.